class_docstr: Lightweight immutable Dataframe similar to Pandas Dataframe.
code: def __iadd__(self, other: "DataFrame") -> "DataFrame":
      tmp = self + other
      self._column_names = tmp._column_names
      self._rows, self._columns = tmp._rows, tmp._columns
      return self
  
imports: import itertools
  import json
  from typing import Any, Callable, Optional, Sequence, Tuple, Union
  from collections import namedtuple
  import numpy
  from tensorflow.python.compiler.tensorrt.model_tests import model_handler
  import tensorflow.python.compiler.tensorrt.trt_convert
  from tensorflow.python.platform import tf_logging
label_desc: Use image node_id 8 for calling the DataFrame obj's underlying member method code with example usage: obj.__iadd__(other) and returns: self